VS
Name
—
Mn²⁺Al₂(SO₄)₄·22H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
1.5
Mohs hardness
—
1.78–1.81
Specific gravity
—
—
Streak
—
Silky in aggregates
Luster
—
—
Cleavage
—
P2_1/c
Space group
—
Halotrichite
Structural group
—
Apj · Grandfathered
IMA
—
1847
Named in
—
Colorless to white, also tinted pale red, green, or yellow
Typical colors
—
Mn · Al · S · O · H
Elements
—